Valued Marantz-Customer!

On this website you can download firmware updates for your Marantz-product.

These updates are available for all customers who purchased a Marantz-product at an authorized retailer in Europe. Once you have registered with your serial number you can download the software free of charge and update your product at your own risk and responsibility.
Changelogs of HEOS devices and devices provided with the HEOS function can be found here.

Please bear in mind that a failed software update might result in a partialy or completely malfunction of your unit. In such case a repair could be comprehensive and quite expensive.Marantz assumes no responsibility for and shall have no liability of any kind with respect to any problems encountered in conjunction with or arising out of the downloading of the Software, including, without limitation, problems resulting from any interruption that may have occurred while downloading the Software. Marantz shall not be required to provide you with any technical support or services of any kind relating to the Software.
Marantz recommends you to update your unit only in case where some problem has been encountered.To update the firmware of your product feel free to contact the authorized Marantz-retailer where you have purchased your Marantz product. Phone number and the address of your retailer you can find on here.

Yes, I have read the text above and understood that the software update, I would do by myself, will be on my own risk